| // -*- C++ -*- |
| |
| // Copyright (C) 2005, 2006 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the terms |
| // of the GNU General Public License as published by the Free Software |
| // Foundation; either version 2, or (at your option) any later |
| // version. |
| |
| // This library is distributed in the hope that it will be useful, but |
| // WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| // General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License |
| // along with this library; see the file COPYING. If not, write to |
| // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, |
| // MA 02111-1307, USA. |
| |
| // As a special exception, you may use this file as part of a free |
| // software library without restriction. Specifically, if other files |
| // instantiate templates or use macros or inline functions from this |
| // file, or you compile this file and link it with other files to |
| // produce an executable, this file does not by itself cause the |
| // resulting executable to be covered by the GNU General Public |
| // License. This exception does not however invalidate any other |
| // reasons why the executable file might be covered by the GNU General |
| // Public License. |
| |
| // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. |
| |
| // Permission to use, copy, modify, sell, and distribute this software |
| // is hereby granted without fee, provided that the above copyright |
| // notice appears in all copies, and that both that copyright notice |
| // and this permission notice appear in supporting documentation. None |
| // of the above authors, nor IBM Haifa Research Laboratories, make any |
| // representation about the suitability of this software for any |
| // purpose. It is provided "as is" without express or implied |
| // warranty. |
| |
| /** |
| * @file native_hash_set.hpp |
| * Contains an adapter to Dinkumware/SGI hash tables |
| */ |
| |
| #ifndef PB_DS_NATIVE_HASH_SET_HPP |
| #define PB_DS_NATIVE_HASH_SET_HPP |
| |
| #include <string> |
| #include <ext/pb_ds/detail/type_utils.hpp> |
| #include <ext/pb_ds/detail/standard_policies.hpp> |
| #include <native_type/assoc/native_hash_tag.hpp> |
| #include <io/xml.hpp> |
| |
| // Default to using tr1. |
| #define PB_DS_USE_TR1 1 |
| |
| #ifdef PB_DS_USE_TR1 |
| #include <tr1/unordered_set> |
| #else |
| #include <ext/hash_set> |
| #endif |
| |
| namespace pb_ds |
| { |
| namespace test |
| { |
| #ifdef PB_DS_USE_TR1 |
| #define PB_DS_BASE_C_DEC \ |
| std::tr1::unordered_set<Key, Hash_Fn, Eq_Fn, \ |
| typename Allocator::template rebind<Key>::other> |
| #else |
| #define PB_DS_BASE_C_DEC \ |
| __gnu_cxx::hash_set<Key, Hash_Fn, Eq_Fn, \ |
| typename Allocator::template rebind<Key>::other> |
| #endif |
| |
| template<typename Key, |
| size_t Init_Size = 8, |
| typename Hash_Fn = typename pb_ds::detail::default_hash_fn<Key>::type, |
| typename Eq_Fn = std::equal_to<Key>, |
| typename Less_Fn = std::less<Key>, |
| typename Allocator = std::allocator<char> |
| #ifdef PB_DS_USE_TR1 |
| , bool Cache_Hash = false |
| #endif |
| > |
| class native_hash_set : public PB_DS_BASE_C_DEC |
| { |
| private: |
| typedef PB_DS_BASE_C_DEC base_type; |
| |
| public: |
| typedef native_hash_tag container_category; |
| |
| native_hash_set() : base_type(Init_Size) { } |
| |
| template<typename It> |
| native_hash_set(It f, It l) : base_type(f, l) { } |
| |
| template<typename Pred> |
| inline size_t |
| erase_if(Pred pred) |
| { |
| size_t ersd = 0; |
| bool done = false; |
| while (!done) |
| { |
| typename base_type::iterator b_it = base_type::begin(); |
| typename base_type::iterator e_it = base_type::end(); |
| done = true; |
| while (b_it != e_it) |
| { |
| if (pred(*b_it)) |
| { |
| ++ersd; |
| done = false; |
| base_type::erase(*b_it); |
| b_it = e_it; |
| } |
| else |
| ++b_it; |
| } |
| } |
| return ersd; |
| } |
| |
| static std::string |
| name() |
| { |
| #ifdef PB_DS_USE_TR1 |
| return std::string("n_hash_set_") |
| + (Cache_Hash ? std::string("cah") : std::string("ncah")); |
| #else |
| return std::string("n_hash_set_ncah"); |
| #endif |
| } |
| |
| static std::string |
| desc() |
| { |
| #ifdef PB_DS_USE_TR1 |
| const std::string cache_hash_desc = |
| make_xml_tag("cache_hash_code", "value", |
| Cache_Hash ? std::string("true") : std::string("false")); |
| |
| return make_xml_tag("type", "value", "std_tr1_unordered_set", |
| cache_hash_desc); |
| #else |
| return make_xml_tag("type", "value", "__gnucxx_hash_set"); |
| #endif |
| } |
| }; |
| |
| #undef PB_DS_BASE_C_DEC |
| } // namespace test |
| } // namespace pb_ds |
| |
| #endif |